18" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length w20h20 + Product Details Size –

+ Product Details Size – 14"w X 36"h is the size for the duct opening measurement only

+ Product Details Size - 32"w X 32"h is the size for the duct opening measurement only

actual front end outer dimensions are approximately 22 5/8" width X 22 5/8" height

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Design – Removable face for cleaning and access to damper - wooden damper for airflow shutoff control

18" Insulated Aluminum Flexible HVAC Duct R-6.0 – 25' Length w20h20 + Product Details Size –+ Product Details High Quality Aluminum housing on the outside and on the inside for the best insulation value Insulation A thick blanket of fiberglass insulation provides you with an R Value of 6. 0 Energy Efficient Air tight inner core decreases the pressure loss and provides a more hygienic environment high energy efficient No fiberglass erosion into air stream Design Designed to withstand bends and sharp turns without kinking. Tough reinforced